For this project you will need a t-shirt and a shirt.
Cut around the collar and button strip, leaving about an inch around the edge.
Throw the rest of the shirt away or put in your scrap bucket.
Pin the shirt collar and buttons to the t-shirt, pinning the lower part of the collar to the inside neckline of the t-shirt and pin the button strip down the front of the t-shirt.
Unbutton the button strip and cut the t-shirt down the middle.
Unstitch each side of the button strip and then take the edge of the t-shirt, fold it under and then stitch it on top of the button strip.
Sew up each side of the button strip and around the collar until the shirt is firmly sewn to the tee.
Trim off all the excess shirt and tee and it's ready to wear.